The Creative Labs
SoundBlaster Live Value
(part 3)


The Frequency Spectrum Analysis

The frequency spectrum analysis performed on this soundcard is using the Fast Fourier Transform method wich is a mathematical tool developed and named after Jean Baptiste Fourier (1768 - 1830) commonly used to convert a signal from the time domain (amplitude-vs-time) to the frequency domain (amplitude-vs-frequency).

The below table is summarizing the measurments performed on this soundcard using SpectraLAB 4.32 with the courtesy of Sound Technology inc.


FFT Measurements Summary
Full Duplex configuration
Creative Labs SoubdBlaster Live Value
Frequency response 30hz to 15khz = +/- 1.37db
1 khz Total Harmonic Distortion .0076% @ -.05db
I9 khz and 20 khz
Intermodulation distortion		 .0029% @ -9.65db
Signal To noise Ratio 74.26db
Dymanic Range 79.45db


Full Duplex Frequency Response


Full Duplex 1 khz Total Harmonic Distortion


Full Duplex Intermodulation Distortion


Full Duplex Dynamic Range

All the above measurements have been performed by feeding the soundcard with reference WAVE samples then looping back the output of the soundcard to the input of the soundcard.

As these measurements have been performed in a Full Duplex configuration, the results are much worse than the actual use of the soundcard in a simple playback or record configuration. So, the above results displayed, can't be compared to those obtainned in a standard configuration but just with soundcards tested with the same configuration. Note that the own limitations of the test engine used should also be taken into account.

Conclusions

This is by far the best soundcard I've heard. Its sound reproduction quality is almost reproachless and its ease of use makes it a real pleasure to work with. I sure would recommend warmly this soundcard to everyone wishing to get the best for its PC sound equipment.

For more information about the Creative Labs SoundBlaster Live Value, click here.

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